5-16 Instruments and Controls
If the check engine light comes on
and stays on, while the engine is
running, this indicates that there is
an OBD II problem and service is
required.
Malfunctions often are indicated by
the system before any problem is
apparent. Being aware of the light
can prevent more serious damage
to the vehicle. This system assists
the service technician in correctly
diagnosing any malfunction.
Notice:If the vehicle is
continually driven with this light
on, after a while, the emission
controls might not work as well,
the vehicle's fuel economy might
not be as good, and the engine
might not run as smoothly. This
could lead to costly repairs that
might not be covered by the
vehicle warranty. Notice:
Modifications made to the
engine, transmission, exhaust,
intake, or fuel system of the
vehicle or the replacement of the
original tires with other than
those of the same Tire
Performance Criteria (TPC) can
affect the vehicle's emission
controls and can cause this light
to come on. Modifications to
these systems could lead to
costly repairs not covered by the
vehicle warranty. This could also
result in a failure to pass a
required Emission Inspection/
Maintenance test. See
Accessories and Modifications
on
page 10‑3.
This light comes on during a
malfunction in one of two ways:
Light Flashing: A misfire condition
has been detected. A misfire
increases vehicle emissions and
could damage the emission control
system on the vehicle. Diagnosis
and service might be required. The following can prevent more
serious damage to the vehicle:
.Reduce vehicle speed.
.Avoid hard accelerations.
.Avoid steep uphill grades.
.If towing a trailer, reduce the
amount of cargo being hauled as
soon as it is possible.
If the light continues to flash, when
it is safe to do so, stop the vehicle.
Find a safe place to park the
vehicle. Turn the key off, wait at
least 10 seconds, and restart the
engine. If the light is still flashing,
follow the previous steps and see
your dealer/retailer for service as
soon as possible.
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Instruments and Controls 5-17
Light On Steady:An emission
control system malfunction has
been detected on the vehicle.
Diagnosis and service might be
required.
An emission system malfunction
might be corrected.
.Make sure the fuel cap is fully
installed. See Filling the Tankon
page 9‑50. The diagnostic
system can determine if the fuel
cap has been left off or
improperly installed. A loose or
missing fuel cap allows fuel to
evaporate into the atmosphere.
A few driving trips with the cap
properly installed should turn the
light off.
.If the vehicle has been driven
through a deep puddle of water,
the vehicle's electrical system
might be wet. The condition is
usually corrected when the
electrical system dries out. A few
driving trips should turn the
light off.
.Make sure to fuel the vehicle
with quality fuel. Poor fuel quality
causes the engine not to run as
efficiently as designed and may
cause: stalling after start-up,
stalling when the vehicle is
changed into gear, misfiring,
hesitation on acceleration,
or stumbling on acceleration.
These conditions might go away
once the engine is warmed up.
If one or more of these
conditions occurs, change the
fuel brand used. It will require at
least one full tank of the proper
fuel to turn the light off.
See Gasoline Specifications
on
page 9‑48.
If none of the above have made the
light turn off, your dealer/retailer can
check the vehicle. The dealer/
retailer has the proper test
equipment and diagnostic tools to
fix any mechanical or electrical
problems that might have
developed.
Emissions Inspection and
Maintenance Programs
Some state/provincial and local
governments have or might begin
programs to inspect the emission
control equipment on the vehicle.
Failure to pass this inspection could
prevent getting a vehicle
registration.
Here are some things to know to
help the vehicle pass an inspection:
.The vehicle will not pass this
inspection if the check engine
light is on with the engine
running, or if the key is in ON/
RUN and the light is not on.
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5-22 Instruments and Controls
Engine Oil Pressure Light
{WARNING
Do not keep driving if the oil
pressure is low. The engine can
become so hot that it catches fire.
Someone could be burned. Check
the oil as soon as possible and
have the vehicle serviced.
Notice: Lack of proper engine oil
maintenance can damage the
engine. The repairs would not be
covered by the vehicle warranty.
Always follow the maintenance
schedule in this manual for
changing engine oil.
The oil pressure light should come
on briefly as the engine is started.
If it does not come on have the
vehicle serviced by your dealer/
retailer.
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and might have
some other system problem. See
your dealer/retailer.
Change Engine Oil Light
When the change engine oil light
comes on, it means that service is
required on the vehicle.
See Scheduled Maintenance
on
page 11‑2and Engine Oilon
page 10‑8for more information.
After the engine oil is changed the
engine oil life system needs to be
reset in order to turn off this light.
See Engine Oil Life System
on
page 10‑10for more information.
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Instruments and Controls 5-29
When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the display.
See“CHANGE ENGINE OIL SOON”
under Engine Oil Messages
on
page 5‑33. You should change the
oil as soon as you can. See Engine
Oil
on page 10‑8. In addition to the
engine oil life system monitoring the
oil life, additional maintenance is
recommended in the Maintenance
Schedule in this manual. See
Scheduled Maintenance
on
page 11‑2for more information.
Whenever the oil is changed the Oil
Life System will need to be reset. To
reset the system through the DIC,
press and hold
Vwhile this display
is shown. When the system is reset
the display will show 100% OIL LIFE
REMAINING. Units
Press the vehicle information button
until UNITS displays. This display
allows you to select between
English or Metric units of
measurement. Once in this display,
press the set/reset button to select
between ENGLISH or METRIC
units. All of the vehicle information
will then be displayed in the unit of
measurement selected.
Tire Pressure
If your vehicle has the Tire Pressure
Monitor System (TPMS), the
pressure for each tire can be viewed
in the DIC. The tire pressure will be
shown in either pounds per square
inch (psi) or kilopascals (kPa).
Press the vehicle information button
until the DIC displays FRONT
TIRES PSI (kPa) LEFT ##
RIGHT ##. Press the vehicle
information button again until the
DIC displays REAR TIRES
PSI (kPa) LEFT ## RIGHT ##.If a low or high tire pressure
condition is detected by the system
while driving, a message advising
you to check the pressure in a
specific tire will appear in the
display. See
Tire Pressure
on
page 10‑50and Tire Messageson
page 5‑37for more information.
If the tire pressure display shows
dashes instead of a value, there
may be a problem with your vehicle.
If this consistently occurs, see your
dealer/retailer for service.
For information on relearning tire
positions see “TPMS Sensor
Matching Process” underTire
Pressure Monitor Operation
on
page 10‑54.
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Instruments and Controls 5-33
ENGINE OVERHEATED IDLE
ENGINE
Notice:If you drive your vehicle
while the engine is overheating,
severe engine damage may
occur. If an overheat warning
appears on the instrument panel
cluster and/or DIC, stop the
vehicle as soon as possible. Do
not increase the engine speed
above normal idling speed. See
Engine Overheating
on page 10‑20for more information.
This message displays when the
engine coolant temperature is too
hot. Stop and allow the vehicle to
idle until it cools down.
ENGINE OVERHEATED STOP
ENGINE
Notice: If you drive your vehicle
while the engine is overheating,
severe engine damage may
occur. If an overheat warning
appears on the instrument panel
cluster and/or DIC, stop the
vehicle as soon as possible. Do
not increase the engine speed
above normal idling speed. See
Engine Overheating
on page 10‑20for more information.
This message displays along with a
continuous chime when the engine
has overheated. Stop and turn the
engine off immediately to avoid
severe engine damage. See Engine
Overheating on page 10‑20.
Engine Oil Messages
CHANGE ENGINE OIL SOON
This message displays when
service is required for the vehicle.
See your dealer/retailer. See Engine
Oil
on page 10‑8and Scheduled
Maintenanceon page 11‑2for
more information.
Acknowledging this message will
not reset the OIL LIFE REMAINING
display. That must be done at the
OIL LIFE screen. See “OIL LIFE”
under Driver Information Center
(DIC)
on page 5‑25and Engine Oil
Life Systemon page 10‑10for more
information.
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5-38 Instruments and Controls
TIRE LEARNING ACTIVE
On vehicles with the Tire Pressure
Monitor System (TPMS), this
message displays when the TPMS
is re-learning the tire positions on
your vehicle. The tire positions must
be re-learned after rotating the tires
or after replacing a tire or sensor.
SeeTire Rotation
on page 10‑57,
Tire Pressure Monitor Systemon
page 10‑52, and Tire Pressureon
page 10‑50for more information.
Transmission Messages
CHANGE TRANSMISSION
FLUID
Notice: Use of the incorrect
automatic transmission fluid may
damage the vehicle, and the
damages may not be covered by
the vehicle's warranty. Always
use the automatic transmission
fluid listed in Recommended
Fluids and Lubricants
on
page 11‑7.
This message displays when the life
of the transmission fluid has expired
and it should be changed. See
Scheduled Maintenance
on
page 11‑2and Recommended
Fluids and Lubricantson page 11‑7for the proper fluid and change
intervals.
SERVICE TRANSMISSION
This message displays when there
is a problem with the transmission.
See your dealer/retailer for service.
TRANSMISSION HOT IDLE
ENGINE
Notice: If you drive your vehicle
while the transmission fluid is
overheating and the transmission
temperature warning is displayed
on the instrument panel cluster
and/or DIC, you can damage the
transmission. This could lead to
costly repairs that would not be
covered by your warranty. Do not
drive your vehicle with
overheated transmission fluid or
while the transmission
temperature warning is displayed.
This message displays along with a
chime if the transmission fluid in the
vehicle gets hot. Driving with the
transmission fluid temperature high
can cause damage to the vehicle.
Stop the vehicle and let it idle to
allow the transmission to cool. This
message clears and the chime
stops when the fluid temperature
reaches a safe level.
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Climate Controls 8-1
Climate Controls
Climate Control Systems
Climate Control Systems . . . . . . 8-1
Automatic Climate ControlSystem . . . . . . . . . . . . . . . . . . . . . . 8-5
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . . 8-9
Maintenance
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
Climate Control Systems
The heating, cooling, and ventilation for the vehicle can be controlled with
this system. For vehicles with the remote start feature, the climate control
system functions as part of the remote start feature. See Remote Keyless
Entry (RKE) System Operation on page 2‑3.
A. Fan Control
B. Temperature Control
C. Air Delivery Mode Control
D. Air Conditioning E. Outside Air
F. Recirculation
G. Rear Window Defogger
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Climate Controls 8-9
Air Vents
Use the louvers located on the air
outlets to adjust the airflow.
Operation Tips
.Clear away any ice, snow,
or leaves from the air inlets at
the base of the vehicle that may
block the flow of air into the
vehicle.
.Do not use any non-GM
approved hood deflectors that
could adversely affect the
performance of the system.
.Keep the path under the front
seats clear of objects to help
circulate the air inside of the
vehicle more effectively.
Maintenance
Passenger Compartment
Air Filter
The filter removes dust, pollen, and
other airborne irritants from outside
air that is pulled into the vehicle.
The filter should be replaced as part
of routine scheduled maintenance.
SeeScheduled Maintenance
on
page 11‑2for replacement
intervals. To find out what type of
filter to use, see Maintenance
Replacement Parts on page 11‑9. The passenger compartment air
filter can be accessed by removing
the entire glove box.
1. Remove the six screws from
around the glove box and detach
the three inner clips from the
glove box.
2. Lower the loosened glove boxhousing.
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